Door for coke-ovens



(No Model.)

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, C. BEAM. DOOR FOR COKE ovENs r Patented July 19,1881.

N, Pains. Pham-ummm, wmimun. D4 c UNITED STATES PATENT OEEICEo CHRISTOPHER BEAM, OF NEW BETHLEHEM, PENNSYLVANIA.

DOOR FOR COKE-OVENS.

SPECIFICATION forming part of Letters Patent No. 244,528, dated July 19, 1881.

Application filed April27,188 1. (No model.)y i

To all whom it may concern Beit known that I, CHRISTOPHER BEAM, of New Bethlehem, inthe county of Clarion and State of Pennsylvania, have invented certain new and useful Improvements in Doors for Coke-Ovens; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference beingvhad to the accompanying drawings, which form a part of this specification, and in which- Figure l is a front elevation' of a coke-oven embodying my invention. Fig. 2 is avertieal cross-section of the door. Fig. 3 is a longitudinal horizontal section ofthe lower part of the door; and Fig. 4 is a perspective detail view of the hinges, with the hinge-post.

Similar letters of reference indicate corresponding parts in all the figures.

My invention has relation to ovens or furnaces forexpelling gas from coal, leaving the coke or carbonaceous portion; and it consists in an improved construction and arrangement ofthe door through which coal is fed into the oven and the charge of coke withdrawn, having for its object to so construct and arrange the door thatit can `be easily managed, shall be absolutely lire proof, and that it, when opened, will be entirely out of the wayin drawing the charge.

ln the annexed drawings, the letter A represents the arched furnace, which is built of iron and fire-clay in any approved construction. Upon one of its sides or posts are iron hingeblocks B B, through which are inserted pintles C, upon which the hinge-arms D of the door E are hung.` These arms are bent outwardly, forming an elbow, d, atan angle corresponding to the angle or slope of the post of the door-frame upon which the door is hungthat is to say, the angle of the elbows d approximates the angle d of the door post or frame, which has an outward slant of about one and one-fourth inch to the foot, so that in opening the door it may be thrown back so as to be entirely out of the way in drawing the charge.

` part, E', which fits the arch ofthe furnace and may be opened outwardly without opening the lower section, E. The latter is composed of an iron plate, c, having air-holes Vff and inwardly-projecting anges g, upon which are secured the inside walls, F, of ireclay, leav! ing an open space or air-chamber, h, between the outer iron plate or wall, e, and inside lireclay walls, F. This inside wall is constructed of placqnes of hre-clay, the meeting edges of 6c which are beveled, as shown at t' in Fig. 3, so as to form a tight joint and prevent thepro- Vducts of combustion from entering the airchamber h. This part of the dooris provided with a suitably-constructed latch, 7c, or other fastening device, and the top part, E', should have a similar latch or fastening to keep it closed.

To charge the oven with coal, the top partk is thrown open without disturbing the lower` Apart of the door, and when the charge of coke is ready to be drawn the lower part, E, is swung wide open in the manner described.

The air-chamber h, with its apertures f j', effectually protects the outer plate or casing, e, against the eEects of the heat, which is most intense in the lower part of the oven, and the inside wall, F, being of fire-clay, will last a long time, and when finally burned out or otherwise destroyed can readily be replaced at small expense.

Having thus described my invention, I claim and desire to secure by Letters Patent of the United States- In a coke-oven, the chambered door composed of a lower part, E, constructedpwith the exterior perforated wall, c, of iron, having flanges g, inside sectional wall, F F, of re# clay, and upper solid arched part, E', of iron, hinged to the top of the chambered lower part, E, and adapted to open outwardly in avertical plane, substantially as and for the purpose herein shown and specified.

In testimony that I claim the foregoing as my own I have hereunto aflixed my signature in presence of two witnesses. t

' CHRISTOPHER BEAM.

Witnesses:

J AMES M. CARNAHAN, DANIEL MERCER. 

